$ go test -cover ./...
?       snippetbox.alexedwards.net/ui	[no test files]
ok      snippetbox.alexedwards.net/cmd/web	0.013s          coverage: 45.7% of statements
        snippetbox.alexedwards.net/internal/models/mocks    coverage: 0.0% of statements
        snippetbox.alexedwards.net/internal/validator       coverage: 0.0% of statements
        snippetbox.alexedwards.net/internal/assert          coverage: 0.0% of statements
ok      snippetbox.alexedwards.net/internal/models	0.128s  coverage: 11.3% of statements

$ go test -coverprofile=/tmp/profile.out ./...

$ go tool cover -func=/tmp/profile.out
snippetbox.alexedwards.net/cmd/web/handlers.go:15:          home                    0.0%
snippetbox.alexedwards.net/cmd/web/handlers.go:31:          snippetView             92.9%
snippetbox.alexedwards.net/cmd/web/handlers.go:62:          snippetCreate           0.0%
snippetbox.alexedwards.net/cmd/web/handlers.go:88:          snippetCreatePost       0.0%
snippetbox.alexedwards.net/cmd/web/handlers.go:131:         userSignup              100.0%
snippetbox.alexedwards.net/cmd/web/handlers.go:137:         userSignupPost          88.5%
snippetbox.alexedwards.net/cmd/web/handlers.go:192:         userLogin               0.0%
snippetbox.alexedwards.net/cmd/web/handlers.go:198:         userLoginPost           0.0%
snippetbox.alexedwards.net/cmd/web/handlers.go:256:         userLogoutPost          0.0%
snippetbox.alexedwards.net/cmd/web/handlers.go:277:         ping                    100.0%
snippetbox.alexedwards.net/cmd/web/helpers.go:17:           serverError             0.0%
snippetbox.alexedwards.net/cmd/web/helpers.go:30:           clientError             100.0%
snippetbox.alexedwards.net/cmd/web/helpers.go:37:           notFound                100.0%
snippetbox.alexedwards.net/cmd/web/helpers.go:41:           render                  58.3%
snippetbox.alexedwards.net/cmd/web/helpers.go:62:           newTemplateData         100.0%
snippetbox.alexedwards.net/cmd/web/helpers.go:73:           decodePostForm          50.0%
snippetbox.alexedwards.net/cmd/web/helpers.go:102:          isAuthenticated         75.0%
snippetbox.alexedwards.net/cmd/web/main.go:35:              main                    0.0%
snippetbox.alexedwards.net/cmd/web/main.go:100:             openDB                  0.0%
snippetbox.alexedwards.net/cmd/web/middleware.go:11:        commonHeaders           100.0%
snippetbox.alexedwards.net/cmd/web/middleware.go:26:        logRequest              100.0%
snippetbox.alexedwards.net/cmd/web/middleware.go:41:        recoverPanic            66.7%
snippetbox.alexedwards.net/cmd/web/middleware.go:61:        requireAuthentication   16.7%
snippetbox.alexedwards.net/cmd/web/middleware.go:83:        noSurf                  100.0%
snippetbox.alexedwards.net/cmd/web/middleware.go:94:        authenticate            38.5%
snippetbox.alexedwards.net/cmd/web/routes.go:12:            routes                  100.0%
snippetbox.alexedwards.net/cmd/web/templates.go:23:         humanDate               100.0%
snippetbox.alexedwards.net/cmd/web/templates.go:40:         newTemplateCache        83.3%
snippetbox.alexedwards.net/internal/models/snippets.go:31:  Insert                  0.0%
snippetbox.alexedwards.net/internal/models/snippets.go:60:  Get                     0.0%
snippetbox.alexedwards.net/internal/models/snippets.go:97:  Latest                  0.0%
snippetbox.alexedwards.net/internal/models/users.go:34:     Insert                  0.0%
snippetbox.alexedwards.net/internal/models/users.go:66:     Authenticate            0.0%
snippetbox.alexedwards.net/internal/models/users.go:98:     Exists                  100.0%
total:                                                      (statements)            38.1%

$ go tool cover -html=/tmp/profile.out

$ go test -covermode=count -coverprofile=/tmp/profile.out ./...
$ go tool cover -html=/tmp/profile.out